Does anyone know what grade of brass is used by Barnes for their banded solids? I was given a couple boxes of these and was curious if they harmed the bore at all? I know the ATF has stopped the making of them but why haven't they stopped Cutting Edge bullets? Do they use a softer type of brass or is it because they are hollow points? The Barnes look like standard yellow brass but realize this is only a visual assessment not a material analysis. Anyway was just wondering if standard off the shelf bar stock is different from the bullet manufacturers and why one company is banned while the other is still producing?